1. College of Nursing, Yong-in Arts and Science University , 17145 Keonggi-do , Republic of Korea
2. College of Nursing, Mo-Im Kim Nursing Research Institute, Yonsei University , 50-1 Yonsei-Ro, Seodaemun-gu, 03722 Seoul , Republic of Korea
3. Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine , Seoul , South Korea